Switch



April 27, 1926. 13322368 M. MORRISSEY Filed Sept. 17, 1925 2Sheets-Sheet 1 WITNESSFS ATTORNEY Patented Apr. 27, 1926.

UNITEE PATENT SWITCH.

Application filedSeptembcr 17, 1923.. Serial No. 683,227.

To all whom it may concern:

Be it known that I, MICHAEL hTORRISSEY,

a citizen of the United States, residing at Kansas City, in the countyof Jackson and State of Missouri, have invented new and usefulImprovements in Switches, of which the following is a specification.

This invention relates to an iron, the general object of the inventionbeing to provide means whereby the iron can be heated to differentdegrees, thus reducing the consumption of current by only heating theiron to its fullest extent when necessary. Another object of theinvention is to r provide means whereby the low heating means arerendered active when the iron is placed in a vertical position upon itssupport with means for automatically turning on full current when theiron is placed in horizontal position.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to theaccompanying draw- 30 ings wherein like characters denote like orcorresponding parts throughout the several views, and in which: m

Figure 1 is an elevation of an iron con structed in accordance with thisinvention.

Figure 2 is a plan view.

Figure 3 is a section on line 33 of Figure 1.

Figure 4 is a diagrammatic view of the iron in upright position.

Figure 5 is a diagrammatic view of the iron in horizontal position.

F igur-es 6 and 7 are detail views.

In these views 1 indicates the body of the iron, 2 indicates the handlethereof and 3 and 4 indicate the terminals for receiving the plug whichis electrically connected with a source of supply. The heating element 5is provided with a pair of coils 6 and 7, r one end of the coil 7 beingconnected with the terminal 3 while the other end of the coil 7 isconnected with the coil 6 by the extension 8. The coil 6 is connectedwith a stationary contact block 9 while the extension 8 is connected bythe conductor 10 with a stationary contact block 11, these contactblocks being placed in a chamber 12 formed at the rear end of the iron.A movable contact block 13 is arranged between the blocks 9 and 11 and astationary contact 1 1 engages the block 13 and is electricallyconnected by the conductor 15 with the terminal i. A rod 16 passesthrough the rear end of the chamber and through the block 11, from whichit is insulated, and is connected with the block 13, being insulatedfrom said block. This rod has its outer end connected with a cap 17which is slidably mounted on the chamber and which is normally held inits outward position by means of the springs 18. A set screw 19 iscarried by one wall of the chamber and engages a slot 20 in the cap sothat the cap can be held in its inward position against the action ofthe springs 18 by tightening said screw.

As will be seen when the block 13 is in engagement with the block 11 thecurrent will pass from the terminal 3 through the coil 7, conductor 10,block 11, block 13, contact 14 and conductor 15 to the terminal 4. Thusthe iron will be heated to its fullest extent. When it is desired toheat the iron to a lesser degree, say when it is not being used or whenit is used toiron smaller articles, the cap is pushed inwardly either byhand or by setting the iron on end and then the current will pass fromthe terminal 3 through both the coils to block 9, block 13, contact let,conductor 15, to terminal 4. Thus the iron will be heated to a lessextent and less current will be used. If the iron is set on end, thecurrent will be automatically caused topass through both coils and whenthe iron is placed in horizontal position again the springs will forceout the cap so that the switch will be automatically operated to causethe current to heat the iron to its fullest extent. When the iron is tobe used at low heat the cap can be pushed in and held in this positionby tightening theset screw 19. The switch parts are placed upon aninsulated base 21 which is arranged in the chamber 12.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claims.

What I claim is 1. A switch for use upon electric irons comprising asubstantially i rectangular chamber adapted to be positioned upon therear end of the iron, a substantially U-shaped cap receiving the sidewalls of: the chamber therein and adapted for sliding movement thereon,sp ing tensioned means included between the chamber and U-shaped cap fornormally holding the cap outwardly, means included on the cap andchamber whereby the cap may be held in adjusted positions thereon, apair of switch cont-act members arranged within the chamber, a contactpositioned within the chamber and connected in circuit with the iron,and an auxiliary slidable contact member arranged between the contactmembers and engaged by the contact and adapted for simultaneous sliding;movement with the substantially U-shaped cap.

2. Aswitch for use upon electric irons comprising a substantiallyrectangular casing adapted to be arranged upon the rear end of the iron,a substantially U-shaped cap receiving the side walls of the chambertherein and adapted for slidable movement thereon, spring tensionedmeans included between the chamber and cap for forcing the capoutwardly, a set screw associated with the chamber and cap whereby thesame may be held in adjusted position thereon, a pair of stationarycontact members arranged within the chamber, a contact positioned withinthe chamber and having communication "ith the iron, an auxiliary movablecontact member arranged between the stationcontact members and engagedby the contact, and a shaft member extending transyersely through one ofthe stationary contact members and having its opposite end portionsconnected to the cap and movable contact member whereby the same maysimultaneously open and close the switches within the chamber.

In testimony whereof I afliX my signature.

MICHAEL MORRISSEY.

